Autopsy conducted on body of Ill. lottery winner

FILE - This undated file photo provided by the Illinois Lottery shows Urooj Khan, 46, of Chicago, posing with a winning lottery ticket. Khan died from cyanide poisoning in July shortly before collecting $425,000 in winnings. His death was initially ruled a result of natural causes but later reclassified a homicide. On Friday, Jan. 18, 2013, his body was exhumed for a forensic autopsy. The Cook County medical examiner said his body was in an advanced state of decomposition, but pathologists were able to obtain samples from most major organs as well as the man's hair and fingernails. Final results from autopsy won't be complete for a few weeks. (AP Photo/Illinois Lottery, File)
— AP

FILE - This undated file photo provided by the Illinois Lottery shows Urooj Khan, 46, of Chicago, posing with a winning lottery ticket. Khan died from cyanide poisoning in July shortly before collecting $425,000 in winnings. His death was initially ruled a result of natural causes but later reclassified a homicide. On Friday, Jan. 18, 2013, his body was exhumed for a forensic autopsy. The Cook County medical examiner said his body was in an advanced state of decomposition, but pathologists were able to obtain samples from most major organs as well as the man's hair and fingernails. Final results from autopsy won't be complete for a few weeks. (AP Photo/Illinois Lottery, File)
/ AP

Despite having foresworn gambling after making the haj pilgrimage to Mecca in 2010, Khan bought a lottery ticket in June. He said winning the lottery meant everything to him and that he planned to use his winnings to pay off mortgages, expand his business and donate to St. Jude's Children's Research Hospital.

He was just days from receiving his winnings when he died before dawn on July 20.

The night before, Khan ate dinner with his wife, daughter and father-in-law at their house. Sometime that night, Khan awoke feeling ill. He died the next morning at a hospital.

Khan died without a will, opening the door to a court battle. The businessman's widow and siblings fought for months over his estate, including the lottery check.